More Usable Horsepower. With a JLT Performance Series 3 Cold Air Intake and a custom tune installed in your 2005 to 2009 GT you can expect to see average gains of 25 to 30 more horsepower and 21 ft-lb torque at the rear wheels. In addition to an increase in horsepower you will also see an impressive improvement in throttle response. 110mm MAF Housing. With a massive 110mm MAF housing "the largest available on the market" this JLT Cold Air Kit was specially designed for Mustangs making over 350 RWHP, but works just as well on a stock daily driver. Money Saving Reusable Filter. This JLT cold air intake kit comes complete with a 4.5" x 9" high flow reusable S&B powerstack air filter. So that means there is no need to go out and buy a new filter every few thousand miles. Now you can just clean the filter, re-oil it, save money, and go! Easy Installation. The JLT Performance Cold Air Intake kit was designed to install with just basic hand tools. No extra modifications or special tools are required for an easy 1 hour installation. Required Upgrade. Installation of this Cold Air Intake will require the use of a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for operation.Application. This JLT Performance Series 3 Cold Air Intake System is specifically designed for use on naturally aspirated 2005 to 2009 GT and Bullitt Mustangs equipped with the 4.6L V8 engine. Will also fit GT's equipped with a Saleen Supercharger.